[F:1][C:2]([F:16])([F:15])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:10]=1)[CH:6]=O.[CH2:17]([NH2:19])[CH3:18].C(O)(=O)C.C(=O)(O)[O-].[Na+]>ClCCCl>[F:1][C:2]([F:16])([F:15])[C:3]1[CH:4]=[C:5]([CH:8]=[C:9]([C:11]([F:14])([F:13])[F:12])[CH:10]=1)[CH2:6][NH:19][CH2:17][CH3:18]3,5-Bis-trifluoromethylbenzaldehyde (3.00 g) is dissolved in 1,2-dichloroethane (50 ml), and thereto are added 70% aqueous ethylamine solution (0.80 ml) and acetic acid (2.1 ml), followed by an addition of triacetoxy-sodium borohydride (13.1 μg) at room temperature over 1 hour with stirring. The mixture is stirred at room temperature for additional 30 minutes, and to the reaction mixture is then added a saturated aqueous sodium bicarbonate solution, and the mixture is extracted with ethyl acetate. The organic layer is washed successively with a saturated aqueous sodium bicarbonate solution and a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane ethyl acetate=4:1) to give (3,5-bis-trifluoromethyl-benzyl)-ethyl-amine (1.52 g). MS (m/z): 272 [M+H]+
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